Automobile power unit



May 8, 1928.l w 1,669,299

F. o. HAZEN AUTOMOBILE POWER UNIT l Filed June 50. 1927 2 Sheets-Sheet 1 May 8, 1928.

F. O.- HAzl-:N

AUTOMOBILE POWER UNIT Filed June 50(1927 2 sheets-snee: 2

INVENTOR.

` line 55 of Figure 4.-.l

Referring specifically to Figures 1 and 2,` A designates a. positively driven wheel of saA Patented May 8, 1928.

UNIT EDl i i PATENT FLOYD o. HAzEN, vor OPPORTUNITY, NEBRASKA.

AUTOMOBILEPQWER UNIT.

` application sied Jueso, i927. senaiiiofzoasar.

lllhis invention relates to .a power .unit adapted to be driven from a` positively driven wheel of an automobile when the latter is appropriately jacked and is primarily.

adapted for use onthe. farmy where elec tricity. and modern iiiachineryareiiot available. f Y

It is aimedk to provide a novelattachment whichmay be readily applied to orrem'oved.

from the hubof a positively driven vehicle wheel, and which unit is of such nature as to. be used for various purposes suchl'as operating a drill, an emery wheeha horse clipping machine, sheep shearing machine and for many other mechanisms andv purposes.

@ne important Objectis to provide a novel means whereby the drive shaft may be clutched for the application of power and whereby such shaft is journaled in an outer sleeve or the llike operable to declutch the drive shaft..

Various additional objects and advantages willi partly be pointed `out, and otherwise become apparent from a consideration of the description following taken in connection chuck of Figure l, in side elevation, and` in section with respect to its conneetionpwith the flexible shafting; l d d e Figure 4 is a plan View partly in section,

illustrating a grinding wheel device which may be operated by my improvements, andy Figure 5 is a'sectional view taken on the an automobile, usually one of the rear wheels, and B is the hub extending therefrom. When an automobile equippedy with a pair of wheels such as A is operated with such one of :said wheelsy jacked up or elevated, the elevated wheel 1A serves as a source of power to operate the improved unit constituting this invention. The other wheel is iXedly secured in any suitable manner to prevent rotation, to insure rotation` and having a pin20 removably d vdiametrically` therethrough and: positioning.k

principally in of the elevated i wheel thisk because o f the dilerentialgearing connecting 4the drive shafts of the wheels. d

In carrying out the invention, ally designated. l0 is detacliably secured any suitablemanner rigidly to OFFICE.

being necessaryv a Capgemini' .00 the wheel `A` and preferably to the hub B overwhich rit may lie-threaded .in the cap and be adapted` to bear against plates 12 `engaging said hub and guided in their` movement by telescopes. To this.y end, binding screws 11 j` rods 13 extending; slidably through open-Vy ings'lt in the hub. The requisite pressure for holding the cap rigidly on `the huhB may be applied to thescrews 11. The outer wall 15k of the cap is relatively fixed and in; effect forms one face of a clutch.

A drive shaft is shown enlargement at 17 which yothermember of the clutch constitutes the` and which may friction elements such as a Washer ofrubber as atlS and adapted for direct contact with the, member 15, Drive shaft 16 has a. re

`duced extension 19 journaled in. the'member 15 and extending inwardlybeyond the same at 16 having' anJ y 'haver fastenings against; the face thereof,

extending f an., expansive-coil' spring 21 thereon, incony tact with` the` pin 20` and: with the member 15, whereby the clutcliesfl? and 15 areurged in such engage#` into and adaptedV to be held ment asgto drive the sha'ftl? from the y,wheel andcap, to thus operate? anymechanism connected with the fdrive shaftV 16.

Surrounding the shaft. 16. and constituting a bearing therefor andfiXed tion, a sleeve 23. Such sleeve may beenagainst rota- Y gaged by an auxiliarysupport or stabilizer e 24. of any suitable construction andengaging any suitable part to serve in rigidifyingthe mounting y for the drive shaft. A fastening nut`25 isscrew` threaded at`2G on the drive shaft and corresponds inshape to the enlargement 17. The sleeve 23 is appropriately enlarged as at 27 and 28, in .accordance with theenlargeinents l7fand 26 and the same. amount suitable ball .bearingsor'antiL frictionjdevices 29 and 30, toienable the drive` shaft to,y operatewith minimum frictiozny The enlargement 27 has bracketsk 31 thereonl accommodating cams 32; which'y are pivoted thereto at 33. Said cams are adapted for operation to engage the clutchv member 15 and slide the sleeve 23 and drive 10o, l c

shaft 16 away from the same slightly as a unit, to separate the clutch members 15 and -17 so that motion of the drive'shaft 16 is ,stopped or the same is idle. It is to be understood that the mounting of the sleeve 23 is such as to permit the said slight longitudinal movement of the drive shaft and sleeve. The bearing face of clutch member 15 is smooth so that there is a slip connection with the cams 32 when actuated to disconnect clutch members 15 and 17.

Any suitable means may be provided for actuating the cams 32. For instance a lever 34 may be pivoted at 35 to the support 24 and havey rods 36 flexibly connected in an opening 37 thereof and in turn connected to the cams. The movement of the lever 34 in one direction will cause the cams toso act on the member 15 as to declutch the drive shaft and movement in the opposite direction will overcome such engagement to the end that the spring 21 may clutch the drive shaft and member 15.

As hinted, the drive shaft 16 may be applied to any suitable work. In Figures 1 to 3 it is adapted to operate a drill held by a conventional chuck generally designated B. Between such chuck and the drive shaft 16, flexible shafting C' of any conven tional form may be used. Suc-h shafting however preferably includes an attaching cap as at 40 screw threaded onto the enlargement 28 and maintaining a tenen 41 of kthe flexible shafting C in engagement with a slot 42 of an extension 43 of the drive shaft. Suchflexible shafting also includes a cap asat 44 detachably threaded ltov a shank 45 of the chuck B so as to maintain a tenon 46 of the flexible shafting C in .a slot 47'of the drive spindle 48 of said chuck.

In lieuof the operation of a chuck and the coacting drill or bit, any other tool may be arranged `for attachment and operation to and by the device. For instance an emery Wheel or` other grinding wheel at D may be driven bythe attachment. Such wheel D is rigid on a short shaft 50 which is jonrnaled in one end of a bracket 51 and has a worm wheel 52 provided thereon. In mesh with the worm vwheel 52 is a worm 53 carried by a shaft 54 provided with a slot55 and which shaft is journaled in a tubular extension 56 of the bracket 51, which .extension is en" larged and provided with screw threads at 57. 'When the device of Figures 4 and 5 is used instead of the chuck B, the latter is removed by disengaging the elements 44 and shank-45. In place thereof, element 44 engages the screw threads at 57 and the tenen 46 enters the slot 55, thus operatively connecting the grinding wheel attachment.

The lever 34 may be operated if-desired from a distance, as through the medium of a y under control of said member a.d engage n able with the first mentioned part. y

2. A device of the'class described comprising a clutch element adapted for connection to a rotatable part, a drive shaft having a clutch member7 a spring urging clutch engagement of said parts, a bearing member carrying said drive shaft, and means to move the bearing member and drive shaft as a unit to declutch the latter, and said shaft having bearing contact with the cap.

3. An attachment of the class described comprising a clutch member attachable to a rotatable part, a drive shaft having an extension slidably mounted in said clutch member, a spring engaging said clutch member and said shaft normally maintaining the shaft and clutch member in Contact so as to drive the shaft.

4. An attachment of the class describedv comprising a clutch member attachable to a rotatable part, a drive shaft having an ex tension. slidably mounted 1n said clutch member, a spring engaging said clutch member and said shaft normally maintaining the lshaft and clutch member in contact so as to drive theshaft, and means operable to' declutch the shaft and clutch member against the tension of the spring.

5. An attachment of the class described comprising a clutch member attachable to a rotatable part, a drive shaft having an extension slidably 'mounted in said clutch member, a spring engaging said clutch member and said shaft normally maintaining the shaft and clutch member in Contact so as to drive the shaft,` a bearing member in which the shaft is journaled, said bearing member being mounted for movement" away from the clutch member, and means carried by the bearing and engageable with the clutch member'to move the shaft and bearing as a unit and declutch kthe former.

In testimony whereof I affix my signature.

FLOYD O. HAZEN. 

